%0 Journal Article %A V. P. Zagonov %T Some variational methods for constructing approximations of nonsmooth solutions of ill-posed problems %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1987 %P 1614-1627 %V 27 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_11_a1/ %G ru %F ZVMMF_1987_27_11_a1